statikuz t1_ispumoj wrote
What's your definition of an unreasonable amount?
https://www.homedepot.com/p/Master-Flow-5-in-to-7-in-Adjustable-Versa-Cap-5070/100396919
https://www.plumbersstock.com/duravent-0133-6gvvth-6in-vent-top-type-b.html
It could be a code enforced thing so insert all the usual "you should ask someone" stuff.
Scozz554 OP t1_ispwtbu wrote
Yeah I imagined a u would be not code, but it could keep things dry until I got a proper one up. Nothing is available locally and things are expected to be wet and below freezing in the next few days. I can find 5" all day. I could reduce to it but that feels more wrong than my u-vent.
Just trying to get something up before I'm no longer willing to be on my roof.
thblackdeth t1_isqig14 wrote
If it's just capped off (no flow) there is no functional difference between reduced or not. Diameter is to allow more airflow
Edit: misread the post, I saw cap, not vent cap. Disregard
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